- update: grpc character db api now includes getting the character list

database-service/src/grpc/character_service.rs

@@ -1,4 +1,4 @@
-use crate::grpc::{CharacterRequest, CharacterResponse, CreateCharacterRequest, DeleteCharacterRequest, Empty};
+use crate::grpc::{Character, CharacterRequest, CharacterListRequest, CharacterListResponse, CreateCharacterRequest, CreateCharacterResponse, DeleteCharacterRequest, Empty};
 use crate::grpc::character_service_server::CharacterService;
 use crate::grpc::database_service::MyDatabaseService;
 use tonic::{Request, Response, Status};
@@ -8,7 +8,7 @@ impl CharacterService for MyDatabaseService {
     async fn get_character(
         &self,
         request: Request<CharacterRequest>,
-    ) -> Result<Response<CharacterResponse>, Status> {
+    ) -> Result<Response<Character>, Status> {
         let req = request.into_inner();
         let repo = &self.db.character_repo;
 
@@ -17,7 +17,7 @@ impl CharacterService for MyDatabaseService {
             .await
             .map_err(|_| Status::not_found("Character not found"))?;
 
-        let response = CharacterResponse {
+        let response = Character {
             id: character.id,
             user_id: character.user_id,
             name: character.name,
@@ -35,12 +35,53 @@ impl CharacterService for MyDatabaseService {
         Ok(Response::new(response))
     }
 
+    async fn get_character_list(
+        &self,
+        request: Request<CharacterListRequest>,
+    ) -> Result<Response<CharacterListResponse>, Status> {
+        let req = request.into_inner();
+        let repo = &self.db.character_repo;
+
+        let characters = repo
+            .get_characters_by_user(req.user_id)
+            .await
+            .map_err(|_| Status::not_found("Character not found"))?;
+        
+        let mut character_list: Vec<Character> = Vec::new();
+        
+        for character in characters {
+            let character = Character {
+                id: character.id,
+                user_id: character.user_id,
+                name: character.name,
+                level: character.level as i32,
+                experience: character.experience,
+                inventory: character.inventory.to_string(),
+                stats: character.stats.to_string(),
+                looks: character.looks.to_string(),
+                position: character.position.to_string(),
+                created_at: character.created_at.to_string(),
+                updated_at: character.updated_at.to_string(),
+                is_active: character.is_active,
+            };
+            character_list.push(character);
+        }
+
+        let response = CharacterListResponse {
+            characters: character_list,
+        };
+
+        Ok(Response::new(response))
+    }
+
     async fn create_character(
         &self,
         request: Request<CreateCharacterRequest>,
-    ) -> Result<Response<CharacterResponse>, Status> {
+    ) -> Result<Response<CreateCharacterResponse>, Status> {
         let req = request.into_inner();
         let repo = &self.db.character_repo;
+        
+        //todo: we need to check if the character name exists already
 
         let character_id = repo
             .create_character(
@@ -59,19 +100,8 @@ impl CharacterService for MyDatabaseService {
             .await
             .map_err(|_| Status::not_found("Character not found"))?;
 
-        let response = CharacterResponse {
-            id: character.id,
-            user_id: character.user_id,
-            name: character.name,
-            level: character.level as i32,
-            experience: character.experience,
-            inventory: character.inventory.to_string(),
-            stats: character.stats.to_string(),
-            looks: character.looks.to_string(),
-            position: character.position.to_string(),
-            created_at: character.created_at.to_string(),
-            updated_at: character.updated_at.to_string(),
-            is_active: character.is_active,
+        let response = CreateCharacterResponse {
+            character_id: character.id,
         };
 
         Ok(Response::new(response))

proto/character_db_api.proto

@@ -3,8 +3,9 @@ syntax = "proto3";
 package character_db_api;
 
 service CharacterService {
-    rpc GetCharacter (CharacterRequest) returns (CharacterResponse);
-    rpc CreateCharacter (CreateCharacterRequest) returns (CharacterResponse);
+    rpc GetCharacter (CharacterRequest) returns (Character);
+    rpc GetCharacterList (CharacterListRequest) returns (CharacterListResponse);
+    rpc CreateCharacter (CreateCharacterRequest) returns (CreateCharacterResponse);
     rpc DeleteCharacter (DeleteCharacterRequest) returns (Empty);
 }
 
@@ -12,6 +13,14 @@ message CharacterRequest {
     int32 character_id = 1;
 }
 
+message CharacterListRequest {
+    int32 user_id = 1;
+}
+
+message CharacterListResponse {
+    repeated Character characters = 1;
+}
+
 message CreateCharacterRequest {
     int32 user_id = 1;
     string name = 2;
@@ -21,11 +30,15 @@ message CreateCharacterRequest {
     string position = 6;  // JSON serialized
 }
 
+message CreateCharacterResponse {
+    int32 character_id = 1;
+}
+
 message DeleteCharacterRequest {
     int32 character_id = 1;
 }
 
-message CharacterResponse {
+message Character {
     int32 id = 1;
     int32 user_id = 2;
     string name = 3;